Pyeongan Supergroup (PS) in the Taebaeksan basin preserves key geological evidences to understand the tectonometamorphic evolution of the Songrim orogeny that affected the formation of the Korean Peninsula during the late Paleozoic to early Mesozoic. The aims of this paper therefore are to investigate the characteristics of the Songrim orogeny based on the previous results of metamorphism and deformations of the PS, and then to review geological significance and research necessity of the PS. Age distributions and Th/U ratio of detrital zircon in the PS indicate that sedimentary environment of the Taebaeksan basin during the late Paleozoic was arc-related foreland basin and retro-arc foreland basin at the active continental margin. In addition, the main magmatic activities occurred in the early Pennsylvanian and Middle Permian, thus sedimentation and magmatic activities occurred simultaneously. The PS was affected by lower temperature-medium pressure (M1) and medium temperature and pressure (M2) regional metamorphism during the Songrim orogeny. During M1, slate and phyllite containing chloritoid, andalusite, kyanite porphyroblasts intensively deformed by E-W bulk crustal shortening combined with folding and shearing. And garnet and staurolite porphyroblasts were formed during the N-S bulk crustal shortening accompained by M2. Such regional metamorphism of the PS is interpreted to occur in an area where high strain zone is localized during ca. 220-270 Ma. In order to elucidate the evolution of the Taebaeksan basin and tectonic features of the Songrim orogeny, it is expected that the study will be carried out such as the regional distribution of metamorphic zones developed in the PS, characteristics and timing of deformations, and late Paleozoic paleo-geography of the Taebaeksan basin.
Purpose: The purpose of this study is to compare the results of the arthroscopic reconstruction of ACL using autologous hamstring tendon and autologous bone-patellar tendon-bone. Materials and Methods: From January, 2000 to December, 2004, 120 patients underwent arthroscopic ACL reconstruction using autologous hamstring tendon(60 cases) and autologous bone-patellar tendon-bone(BPTB)(60 cases). The mean followed up period of hamstring tendon group was 42 months(range $24{\sim}69$ months) and patellar tendon group was 52 months(range $24{\sim}84$ months). At the time of the final follow up, sixty patients in each group were evaluated the results of physical examination, activity level, patients' satisfaction, functional status, and objective anteriror stability using KT-2000 arthrometer. Results: At the time of the final follow up we compared the two groups who had ACL reconstruction using either autologous hamstring tendon or BPTB, and the final results of the Lachman test showed negative, or mildly positive in 85%(51 cases) of the hamstring tendon group and 90%(54 cases) of the BPTB group. Pivot shift test indicated positive in both groups, 8%(5 cases) and 5%(3 cases) respectively and showed no statistically significant difference. The evaluation of the anterior laxity using the KT-2000 arthrometer revealed no significant difference in the hamstring and BPTB groups: differences less than 3 mm compared to the healthy side were 85%(51 cases) and 90%(54 cases)(p>0.05). The Lysholm score improved from a preoperative score of 51 to a postoperative score of 79.1 in the hamstring groups and from 52 to 82.2 in the BPTB groups. According to the IKDC rating system, 87%(52 cases) were normal or near normal in the hamstring group. In the BPTB group, 83%(50 cases) were normal or near normal. The Tegner score for the hamstring groups was 4.8 preoperatively and 7.1 at the final follow up, and the Tegner score for the BPTB groups was 4.5 preoperatively and 7.3 after the last follow-up. The anterior knee pain was found in 7%(4 cases) in the hamstring tendon group and 10%(6 cases) in the patellar tendon group. Conclusion: Arthroscopic ACL reconstruction using both the autologous hamstring tendon and the patellar tendon during their mid term follow up period demonstrated excellent results. However, the final results during their last follow up showed no statistically significant difference between the two groups.
In the Cheongju-Minwon area which occupies the middle part of the Ogcheon Metamorphic Belt, three metamorphic events(M1, M2, M3) had occurred. Intermediate P/T type M2 regional metamorphism formed prevailing mineral assemblages in the study area. Low PIT type M3 contact metamorphism occurred due to the intrusion of granites after M2 metamorphism. M1 metamorphism is recognized by inclusions within garnet. During M2 metamorphism, the metamorphic grade increased from the biotite zone in the southeastern part to the garnet zone in the northwestern part of the study area. This result is similar to the metamorphic evolution of the southwestern part of the Ogcheon Metamorphic Belt. Garnets in the garnet zone are classified into two types; Type A garnet has inclusions whose trail is connected to the foliation in the matrix and Type B garnet has inclusion rich core and inclusion poor rim. Type A garnet formed in the mica rich part with crenulation cleavage whereas Type B garnet formed in the quartz rich part with weak crenulation cleavage. In some outcrops, two types garnets are found together. Compared to the rim of Type A garnet, the rim of Type B garnet is lower in grossular and spessartine contents but higher in almandine and pyrope contents. In some Type B garnets, the inclusion poor part is rimmed by muddy colored or protuberant new overgrowth. In the inclusion poor part and new overgrowth, a rapid increase in grossular and decrease in spessartine is observed. However, the compositional patterns of Type A and B are similar; Ca increases and Mn decreases from core to rim. Two types garnets formed mainly due to the difference of bulk chemistry instead of metamorphic and deformational differences. The metamorphic P-T conditions estimated from Type A garnets are 595-690 OC15.7-8.8 kb, which indicates M2 metamorphism is intermediate P/T type metamorphism. On the other hand, a wide range of P-T conditions is calculated from Type B garnets. The P-T conditions from most Type B garnet rims are 617-690 OC16.2-8.9 kb which also indicates an intermediate P/T type metamorphism. However, at the rim part with flat end or weak overgrowth, grossular content is low and 573-624OC14.7-5.8 kb are estimated. The P-T conditions calculated from plagioclase and biotite inclusions in garnet are 460-500 0C/1.9-3.0 kb. The P-T conditions from rim part with weak overgrowth and inclusions within garnet, indicate that low P/T type M1 regional metamorphism might have occurred before intermediate P/T type M2 regional metamorphism. The P-T conditions estimated from samples which had undergone low PIT type M3 metamorphism strongly, are 547-610 0C/2.1-5.0 kb.
This Study is concerned with the architectural problems particular to the design of the sanctuary in Catholic churches. The paper is meant to address two distinct groups - clerics and architects. Architects do not tend to think the church buildings theologically or liturgically, and priests, though they are often trained in the arts, do not tend to look at buildings the same way architects do. Hence, my goal is to adequately address the concerns of each in a language the other will understand, thereby building a bridge of communication between the two groups. The two main concerns of the study are to provide guidelines and reflection lot liturgically correct buildings, and to re-establish the traditions of church buildings. I discuss the idea of the sanctuary in the Catholic church,(in chapter 2) and examine each of the main furnishings of the sanctuary with regard to history, liturgical use, symbolism and related pastoral concerns.(in chapter 3,4).
Kim Jong Soon;Shin Kyoo Seog;Lee Dong Hwa;Sok Jin Ho;Park Sang Hwan;Heo Jeong Kuk
Journal of the Korean Arthroscopy Society
/
v.6
no.2
/
pp.150-155
/
2002
Purpose : The purpose of this study was to evaluate the clinical results of meniscal repair using the bioabsorbable devices. Materials and Methods : From 1998, 21 meniscal repairs were underwent using the bioabsorbable devices and followed more than 1 year. The Meniscus $Arrow^{\circledR}$(Bionx) and the Meniscal $Fastener^{\circledR}$(Mitek) had been applied. The indication for meniscus refixation was an unstable longitudinal tear in the posterior horn of the medial or lateral meniscus. Concurrent ACL reconstruction with meniscal repair was performed on 9 knees. The clinical result was evaluated using Lysholm knee score. Result : The average Lysholm knee scores for all patients improved from 56 preoperatively, to 89 postoperatively. The type of the device were not significantly related to clinical outcome or Lysholm knee score. But the concurrent ACL reconstruction group and the patients treated within 8 weeks had better clinical result than the others. Conclusion : The all-inside meniscal repair technique using bioabsorbable devices can be considered to be an useful method in the well selected patients and concurrent ACL reconstruction surgery.
Purpose: The purpose of this study were to evaluate the results of arthroscopic PCL reconstruction and posterolateral structure reconstruction. Materials and Methods: We performed 10 cases of arthrocopic PCL and posterolateral structure reconstruction using allo-achilles tendon. The average follow-up period was 25 months. We performed KT-2000 testing and posterior drawer test for posterior instability and tibial external rotation test for posterolateral rotatory instability, and measure Tegner and Lysholm score preoperatively and compared these with the results of a final evaluation in each cases. Results: The Preoperative average KT-2000 tests was 7.1 mm, posterior drawer test was Grade III and tibial external rotation test was positive at both 30 and 90 degrees of knee flexion in all cases. Preoperative average Lysholm score was 65.9 and Tegner score was 3.1. At the final evaluation, an average KT-2000 test was 2.2 mm, posteior drawer test, Grade 0 was 2 cases, Grade 1.4 cases, Grade II, 3 cases, Grade III, 1 cases. The tibial external rotation test at both 30 and 90 degrees of knee flexion was positive in 1 cases and positive at only 90 degrees in 2 cases. Lysholm score was 87.6 and Tegner score was 5.7. The objective and subjective score of final evaluation is increased in compare with preoperative one. Conclusion: Arthrocopic PCL and posterolateral structure reconstruction using allo-achilles tendon is one of the good surgical treatment method in patients having posterior and posterolateral rotatory instability.
Kim, Jae-Hwa;Lee, Yoon-Seok;Rhee, Seung-Yong;Chung, Ju-Hwan
Journal of the Korean Arthroscopy Society
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v.11
no.2
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pp.104-110
/
2007
Purpose: The purpose of this study is comparison of clinical outcomes in ACL reconstruction between auto-hamstring tendon and allo-tibialis anterior tendon. Materials and Methods: In this prospective study, we included 60 subjects who underwent ACL reconstruction using 30 hamstring autograft(mainly, national health insurance) and 30 tibialis anterior allograft(including MVA and industrial injuries) between May 2003 and June 2005 by a single surgeon, with a minimum follow-up of 12 months. Outcome measurements were the range of motion, the Lachman test, the IKDC score, the Lysholm score, KT-1000 arthrometer and one-leg hop test. Results: For all the cases, the range of motion was above 135 degrees. The Lachman test, KT-1000 arthrometer and one-leg hop test showed no significant difference between two groups. The IKDC score of auto-hamstring group($87.840{\pm}2.106$) was significantly higher than that of allo-tibialis anterior group($85.273{\pm}2.782$). The Lysholm score of auto-hamstring group($88.067{\pm}2.586$) was also significantly higher than that of allo-tibialis anterior group($85.300{\pm}3.030$). Conclusion: The results of ACL reconstruction using the auto-hamstring tendon and allo-tibialis anterior tendon showed no significant difference in objective items but auto-hamstring group showed better results in subjective scoring. This difference may result from individual factors such as economic problem, secondary gain.
Purpose: This study examined the relationship between graft appearance on follow-up magnetic resonance imaging (MRI) and knee stability after double bundle anterior cruciate ligament (ACL) reconstruction. Materials and Methods: For each patient, 1.5 tesla MRI's were obtained. The signal intensity of grafts was divided into 3 grades by Sononda's classification. The course of grafts was divided into two patterns: straight and curved. We assessed Lachman test, KT 2000 arthrometer and anterior drawer stress radiograph using Telos$^{(R)}$ in $30^{\circ}$ knee flexion for anterior stability and evaluated pivot shift test for rotatory stability. The correlation between graft appearance on MRI and the results of knee stability tests was evaluated. Results: The anteromedial (AM) graft was evaluated as being grade 1 in 66.7%, grade 2 in 26.7%, and grade 3 in 6.7% of the cases and the posterolateal (PL) graft was assessed as being grade 1 in 63.3%, grade 2 in 33.3%, and grade 3 in 3.3% of the cases according to the signal intensity. The AM graft was evaluated as being straight in 83.3% and curved in 16.7% of the cases, and the PL graft was assessed as being straight in 86.7% and curved in 13.3% of the cases according to the course. The course of AM graft was correlated with the results of anterior stability tests and the course of PL graft was correlated with the result of rotatory stability test. However, the signal intensity of grafts was not correlated with the results of anterior stability and rotatory stability tests. Conclusion: The course of AM is correlated with anterior stability and the course of PL is correlated with rotatory stability on follow-up MRI after double bundle ACL reconstruction.
Journal of the Korean Institute of Landscape Architecture
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v.49
no.5
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pp.97-111
/
2021
The purpose of this study was to analyze commemoration characteristics of the United States of America, the Commonwealth, and Germany through representative 14 military cemeteries of World war II in Western Europe. Based on the commemoration characteristics such as spacial characteristic, commemorative elements, and graves and headstone, the commemoration culture among U.S., the Commonwealth. and Germany were studied comparatively. The results are as follows. First, taking geometrical form with mainly square type, rarely circle and spiral patterned, most cemeteries were structured spatial central axis with symmetry, those cemeteries were styled neoclassical, but some of the U.S. cemeteries were modernistic, connecting spaces organically with curved line layout. Second, chapel, the wall of missing, the wall of battle map, and sculpture in the U.S military cemeteries, and 'the cross of sacrifice' and 'the stone of remembrance' as classical monument in the Commonwealth war cemeteries were commonly applied standardized commemorative elements, but commemorative monuments in German military cemeteries were restricted except monumental cross. Third, the symbolic cross of christianism was used all cemeteries to console and cherish the soul of soldiers, specially the Latin crosses in the U.S military cemeteries delivered political message as the american martyr for Western Europe and also the power of the U.S., but the cross in German and the Commonwealth war cemeteries were basically cherish and comfort individual spirit. Fourth, showing the power of victory with national patriotism, the U.S. strongly represented christianism and liberal democracy against communism, the Commonwealth showed imperialistic style, and German military cemeteries were quietly appeared as traditional style forwarding reconciliation and peace. This study suggest the war cemeteries have national identity with typical form and symbolic aesthetics. Further study will be required to materialize sublime commemoration in national cemeteries and to form advanced commemorative culture in Korea.
Kim, Jin Goo;Lim, Young;Kim, Byung Jik;Ko, Han Suk;Moon, Hyung Tae
Journal of the Korean Arthroscopy Society
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v.2
no.2
/
pp.107-113
/
1998
This study is retrospective analysis of 31 patients treated by arthroscopically assisted ACL reconstruction, from September 1995 to September 1996. ACL reconstructions using autogenous bone patellar tendon bone (B-PT-B) were done in 18 patients, and using hamstring tendon were done in 13 patients. We used four-stranded hamstring tendon grafts and fixed the grafts using Endobutton and screw. The mean postoperative Lysholm knee score was 87.2 points in B-PT-B. group, and 89.0 points in hamstring tendon group. There were no clinically significant results between two groups in Telos test, quadriceps atrophy, Lachman test, anterior drawer test and pivot shift test, but the incidences of anterior knee pain were lower in hamstring group. Four-stranded hamstring tendon graft showed enough stability and good functional outcome similar to that of patellar tendon graft, and had an advantage of quicker return of quadriceps function and less donor site morbidity.
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